84.3k views
1 vote
Show your reasoning.
2y=x-4
4x + 3y = 5

PLS HELP

1 Answer

0 votes

Answer:

(2,-1)

divide both sides of the first equation by 2 to get y by itself. this gets you y=x/2-2

then plug that into the other equation:

4x+3(x/2-2)=5

SImplify that to get:

4x+3x/2-6=5

Add 6 to both sides:

4x+3x/2=11

give 4x a denominator of 2 as well:

8x/2+3x/2=11

add them:

11x/2=11

multiply both sides by 2/11 to get:

x=22/11 which simplifies to x=2

plug x into first equation:

2y=(2)-4

simplify:

2y=-2

divide both sides by 2 to get:

y=-2/2 which is the same as -1

x=2

y=-1

answer: (2,-1)

I hope this helps

User Michael Eden
by
7.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories